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Heart|Natural|GIA

0.91ct J SI1 Heart Natural Diamond

EX • J/SI1 • GIA 6541663449

Certificate GIA 6541663449

Diamond specifications and retailer prices

From £706 GBP
SGD 1,281 SGD
As of October 27, 2026
Save £329 GBP (32%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £1,036 GBP at GemTrove · As of November 2, 2026
View at GemTrove

About this 0.91ct natural heart diamond

This 0.91ct natural heart sits in the just-under-one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6541663449. Listed at 6 retailers as of October 27, 2026, with prices from £706 to £1,036, a £329 spread on the same certified stone. GemTrove lists it at £1,036. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.91
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6541663449
Dimensions5.82 × 6.87 × 4.01 mm
L/W Ratio1.18
Top View
5.82 mm6.87 mm0.91 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6541663449
Side View
Table 60.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 58.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: £1,036 GBP|Low: £548 GBP|High: £1,036 GBP|Avg: £751 GBP
GemTrove
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 27, 2026
Retailer 6£628 GBP
Retailer 7£633 GBP
Retailer 3£686 GBP
Retailer 5£706 GBP
Retailer 2£707 GBP
Retailer 4£773 GBP
GemTrove£1,036 GBP

34 data points across 7 retailers

6 retailers£706 GBP to £1,036 GBP

Retailer 1
-
£633 GBP
MYR 3,459 MYR
Price last confirmed 7 days ago
Retailer 2
-
£686 GBP
$920 USD
View
Price last confirmed 7 days ago
A
Retailer 3
-
£706 GBP
SGD 1,281 SGD
View
A
Retailer 4
-
£707 GBP
View
Retailer 5
-
£773 GBP
$1,037 USD
View
Price last confirmed 9 days ago
Most Expensive
B
GemTrove
GT-N-01266758-98 · Nov 2
£1,036 GBP
A$2,138 AUD
View
5 more retailers have this diamond
Prices start from £706 GBPSave up to £329 GBP

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
0.91ct Heart
£706 GBP